Surf Forecasts:
Costeño Beach surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 10PM (local time) - 7ft (2.1m), 8s period, NE swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 10PM (local time) - 8ft (2.5m), 8s period, NE swell with 808 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 10AM (local time) - 4ft (1.2m), 7s period with NE swell.
Best Forecast Surf Conditions for Costeño Beach this week:
The surf forecast for Costeño Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 10AM. The primary swell is predicted to be 1.2m and 7s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Costeño Beach in the next 16 days are 2.5m 8s and forecast to arrive on Friday (Aug 21) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (-05) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Tue 18th Aug) | 4ft (1.2m) 7s |
| Best Surf | 10PM (Thu 20th Aug) | 7ft (2.1m) 8s |
| Most Powerful | 10PM (Fri 21st Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Costeño Beach over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break this down in feet.
The forecast is pretty quiet overall. Our main spot is Costeño Beach (Colombia). It’s a consistent beginner-friendly beach break. The issue? The wind is almost always from the east or ENE, which puts it cross-onshore for the vast majority of the outlook. That’s a buzzkill for clean waves.
Water temp is nothing out of the ordinary for this time of year.
We get started on Tuesday, August 18th. That 4ft NE swell is a short-period windswell at 7 seconds. Mornings are the best bet, with glassy conditions, but there’s a risk of thunderstorms in the mix.
The problem remains the persistent cross-onshore wind. It never really cleans up. Combined swell energy stays moderate, between the low hundreds and around 450 at best.
There’s a little bump in size around Friday, August 22nd and Tuesday, August 25th, with waves hitting 6ft. The maximum is about 7ft on the 25th. But the cross-onshore wind is still there, so it’s not going to be surf of the year. The period stays short, between 7 and 8 seconds.
Honestly, this whole stretch looks more interesting for a kite surfer than a regular paddle surfer. If you're a beginner, Thursday morning, August 20th, is your best window with some glassy conditions, but it’s still just “ordinary.”
By late August, the swell drops off fast. We’re back to 4ft and smaller by the 27th, and the energy numbers tank to under 100 by August 31st and September 1st. That’s weak.
On the bright side, this is a consistent break and conditions usually turn around. There’s no true standout session here, so it’s about picking the cleanest window if you really want a paddle.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Tue afternoon. Warm (max 30°C on Thu morning, min 26°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Fri afternoon. Warm (max 30°C on Fri morning, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 8 | NE 7 | NE 7 | NE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 147 | 143 | 269 | 124 | 144 | 354 | 200 | 201 | 424 | 333 | 235 | 525 | 448 | 355 | 392 | 285 | 211 | 373 | 285 | 262 | 424 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross-on | glassy | cross | on | on | cross-on | cross-on | on | cross | cross-on | on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross |
High Tide | 4:23AM0.13m | 5:04PM0.30m | 6:11AM0.10m | 5:49PM0.30m | 7:24AM0.08m | 6:30PM0.30m | 8:01AM0.07m | 7:08PM0.31m | 8:17AM0.06m | 7:44PM0.32m | 8:28AM0.06m | 8:18PM0.32m | 8:43AM0.07m | 8:50PM0.33m | |||||||
Low Tide | 9:06AM0.10m | 1:27AM0.07m | 9:28AM0.09m | 2:19AM0.04m | 9:58AM0.07m | 3:01AM0.03m | 10:30AM0.06m | 3:37AM0.03m | 11:10AM0.05m | 4:08AM0.03m | 4:37AM0.04m | ||||||||||
 | |  |  | |  |  | | | | | | | | | | | | | | | |
 | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — |
 | — | 6:13 | — | — | 6:12 | — | — | 6:12 | — | — | 6:10 | — | — | 6:10 | — | — | 6:09 | — | — | 6:09 | — |
mm | 2 | 3 | — | — | 1 | 1 | — | 2 | — | — | 4 | 1 | — | 1 | 1 | 1 | 3 | 1 | 1 | 2 | 1 |
Temp °C | 29 | 28 | 26 | 28 | 28 | 27 | 30 | 30 | 27 | 30 | 28 | 26 | 30 | 29 | 27 | 29 | 28 | 27 | 29 | 28 | 27 |
Feels °C | 33 | 32 | 31 | 34 | 34 | 30 | 34 | 35 | 31 | 35 | 33 | 29 | 35 | 34 | 31 | 33 | 33 | 31 | 33 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | NE 8 | NE 8 | NE 8 | — | — | — | — | — | — | — | — | — | NE 7 | — | — | — |
| kJ | — | — | — | — | — | 354 | 143 | 201 | — | — | — | — | — | — | — | — | — | 255 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | — | NE 8 | — | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 8 | NE 7 | NE 7 | NE 8 |
| kJ | 147 | 143 | 269 | 124 | 144 | — | 200 | — | 424 | 333 | 235 | 525 | 448 | 355 | 392 | 285 | 211 | 373 | 285 | 262 | 424 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 30 | 627 | 15 | 0 | 8 | 15 | 625 | 627 | 164 | 625 | 668 | 199 | 652 | 682 | 164 | 8 | 8 | 119 | 8 | 15 |
Best forecast wave conditions in Caribbean Coast | |||||||||||||||||||||
Best forecast wave conditions in Colombia | |||||||||||||||||||||
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Information about the Costeño Beach Surf forecast
The above surf forecast table for Costeño Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Costeño Beach can be found by selecting the local surf guide option on the grey menu. Our Costeño Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Costeño Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Costeño Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Costeño Beach is 36 km (22 miles) from the city of Santa Marta. If you plan a holiday in Caribbean Coast, look for hotels and other accommodation in Santa Marta. Santa Marta has rooms for a wide range of budgets as well as car hire and transport links.
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